Photographic camera having one or more detachable magazines

ABSTRACT

Photographic camera having a view finder and a detachable film cassette and comprising film feed means for automatically feeding film sheets in the cassette to the film exposure frame one by one after the exposure thereof and for returning the respective exposed film sheets to the same cassette or to another cassette detachably mounted on the camera. The film feed means is energized by the operation of a handle thereof and comprises roll means driven by the energization of the film feed means for feeding and guiding the film sheets.

United" States Patent [151 3,653,309 Ochiai et al. [451 Apr. 4, 1972[54] PHOTOGRAPHIC CAMERA HAVING References Cited ONE OR MORE'DETACHABLEUNITED STATES PATENTS MAGAZINES v 458,907 9/l89l Klpper et al. ..95/l9[72] Inventors: Kohei Ochial, Tokyo; Kiyoakira Kato, 2,602,386 7/l952Brigham et al... .....95/26 Chiba, both ofJapan 1,557,085 10/1925 Piller..95/30 [73] Assignee: Olympus Optical Co.', Ltd Tokyo, Japan m a U Exer samuel S M anh ews [22] Filed, AP 7, 970 Assistant Examiner-RichardL. Moses Attorney-Otto John Munz' Appl. No.: 26,352

I v 1 I [57] ABSTRACT [30] Foreign Application Priority Data June 14.1969 15mm ....44/47'223 June 17, 1969 Japan.. ....4 }/477 t6 u.s.c1....9s/2'4,9s/26 1m. (:1. ..G03b 19/10 FieldoiSearch ......95/24,26,30,13, 19

' Photographic camera having a view finder and a detachable filmcassette and comprising film feed means'for automatically feeding filmsheets in the cassette to the film exposure frame one by one after theexposure thereof and for returning the respective exposed film sheets tothe same cassette or to another cassette 'detachably mounted onthecamera. The film feed means is energized by the operation of a handlethereof -'and comprises roll meansdriven by the energization of the filmfeed means for feeding and guiding the film sheets.

6 Claims, 22 Drawing Figures Patented April 4, 1972 ll Sheets-Sheet lINVENTORS KOHEI OCHIALKIYOAKIRA KA'IO 27 ATTORNEY z Patented April 4,1972 3,653,309

11 Sheets-Sheet 2 INVENTOR KOHEI OCHIAI, KIYOAKIRA KATO Patented April4, 1972 ll Sheets-Sheet 5 INVENTORS KOHEI OCHIAI ,KIYOAKIRA KATO IATTORNEY Patented April 4, 1972 ll Sheets-Sheet 4 INVENTOR S KIYOAKIRAKATO KOIIEI OCIIIAI ATTORNEY Patented A ril 4, 1972 3,653,309

11 Sheets-Sheet 5 INVENTORS KOHEI OCHIAI KIYOAKIRA KATO I ATTORNEYPatented April 4, 1972 3,653,309

11 Sheets-Sheet 6 INVENTOR KOHEI' OCHIAI KIYOAKIRA KATO Patented April4, 1972 ll Sheets-Sheet '7 INVENTOR S KIYOAKIRA KATO 2% ATTORNEY KOHEIOCHIAI,

Patented April 4, 1972 ll Sheets-Sheet 2 INVENTORS KIYOAKIRA KAIOATTORNEY KOIIEI OCHIAI 11 Sheets-Sheet 3 Patented April 4, 1972 vINVENTORS KOIIEI OCHIAI, KIYOAKIRA KA'IO 1&1

ATTORNEY Patented A ril 4, 1972 3,653,309

11 Sheota-Sheet 1O INVENTORS KOHEI OCHIAI, KIYOAKIRA KATO Y d2! M47ATTORNEY Patented April 4, 1972 3,653,309

11 Sheets-Sheet l l [O5 H2O INVENTORS KOHEI OCIIIAI, KIYOAKIRA KATOATTORNEY camera, and more particularly,

eliminated.

PHOTOGRAPHIC'CAMERA HAVING ONE OR MORE DETACHABLE MAGAZINES BACKGROUNDOF THE INVENTION film exposure frame by the actuation ofanotheractuating member of the film feed meansprior to the actuation ofthe handle for energizing the film feed means or directly by theactuation of the handle forenergizing the film feed means.

Heretofore, a photographic camera having a detachable film cassette waswell known. In the prior art photographic camera of the type describedabove, troublesome manual operation is required each time the exposureof the film sheet is effected.

Further, the prior art detachable film cassette must be disposed ofafter all the film sheets therein are exposed thereby making ituneconomical to use such a'film cassette.

The present invention aims at avoiding the disadvantages of the priorart photographic camera having a detachable film cassette.

SUMMARY OF THE INVENTION An object of the present invention is toprovide a novel and useful photographic camera having a detachablecassette in which the above described dis dvantages of the prior art areAnother object of the present invention is to provide a novel and usefulphotographic camera of the type described above in which each of thefilm sheets in the cassette is automatically fed to an exposure frame inthe camera for the. exposure thereof and fed out of the exposure frameafter the exposure of the film sheet effected by shutter release meansby means of a film feed means provided in the camera so as to be readyfor the exposure of the succeeding one of the film sheets.

A further object is toprovide a novel and useful photographic camera ofthe type described above in which a separate detachable film cassette isprovided for receiving the exposed film sheets.

Still further object is to provide a novel and useful photographiccamera of the type described above in whicha single detachable filmcassette is provided, the cassette having two compartments in one ofwhich the unexposed film sheets are housed while the other compartmentis adapted to receive the film sheets after the exposure thereof therebypermitting the handling of the cassette to be made easy and simple.

The above objects of the present invention are achieved by the provisionof a photographic camera having a detachable film cassette which ischaracterized by film feed means having a manually operable handle'forenergizing the film feed means each time the handle is actuated so as topermit one ofa plu rality of unexposed film sheets housed in thecassette to be fed to the film exposure frame of the camera by theactuation of an actuating member of the film feed means, the film sheet,after having been exposed, being adapted to be withdrawn from theexposure frame so as to be ready for the feeding of the succeeding oneof the film sheets to the exposure frame for the exposure thereof.

In accordance with a feature of the present invention, the exposed filmis withdrawn from the exposure frame by the actuation of anotheractuating member of the film feed means prior to the energization of thefilm feed means so as to be fed into another film cassette detachablymounted on the camera for receiving the exposed film sheets.

In accordance with a further feature of the present invention, therespective unexposed film sheets are fed out of one of film sheet is fedautomatically embodiment of the. cordance with the present invention;

the two compartments in the film cassette for the exposure thereof bythe actuation of the actuating member and the respective exposed filmsheets are fed into the other of the two compartments of the filmcassette by the actuation of the handle for energizing the film feedmeans so as to be ready for feeding the succeeding one of the filmsheets for the exposure thereof.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view partlyin section showing an photographic camera constructed in ac- FIG. .2 isa perspective view showing the camera of FIG. 1;

FIG. 3 is a perspective view showing the film cassette used with thecamera of FIG. 1;

FIG. 4 is a view similar to FIG. 3 but showingthe movable lid thereof inits opened state;

FIG. 5 is a fragmentary side view showing the detail of the lid and thecassette of FIG. 3;

FIG. 6 is a schematic perspective view showing the general arrangementof the film feed FIG. 1;

FIG. 7 is a fragmentary view showing the arrangement of the driving gearand the driven gear provided in the film feed means of FIG. 6; I

FIG. 8 is a schematic side view showing the arrangement of the actuatingmembers and the driving and driven gears and the driving pinion of thefilm feed means of FIG. 6; 7

FIG. 9 is a schematic view showing the arrangement of the actuatingmembers and the actuating gear and the driving 7 pinion of the film feedmeans of FIG. 6;

FIG. 10 is a schematic sectional view of the camera of FIG. 1 showingthe arrangement of the various elements of the film feed means of FIG.6;

FIG. 11 is afragmentary view showing the actuation of the switchinglever in cooperation with the actuating gear of FIG.

FIG. 12 is a view similar to FIG. 8 but showing the different phase inoperation of the film feed means of FIG. 6;

FIG. 13 is a fragmentary view showing the manner in which the exposedfilm sheet is fed into the film receiving cassette of FIG. 3;

FIG. 14 is a schematic sectional view showing another embodiment of thephotographic camera of the present invention;

FIG. 15 is a perspective view showing the camera of FIG. 14;

FIG. 16 is a perspective view showing the film cassette used .with thecamera of FIG. 14;

FIG. 17 is an exploded perspective view showing the interior of thecassette of FIG. 16;

FIG. 18 is a perspective view showing the film holding frame used in thecassette of FIG. 16;

FIG. 19 is a schematic sectional view showing the arrangement of thefilm feed means provided in the camera of FIG. 14;

FIG. 20 is a schematic view showing the arrangement of the actuatingmember, actuating lever and gearing arrangement of the film feed meansof FIG. 19;

FIG. 21 is a fragmentary view showing the manner how the film holdingframe is actuated by the actuating lever of FIG. 20; and

FIG. 22 is a view similar to holding frame in its different FIG. 21.

FIG. 21 but showing the film phase of operation from that of DETAILEDDESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, the cameraof the present invention is shown as being a single lens reflex camerahaving main body 8, bellows 9 mounted on body 8, objective lens 10attached to the forward end of bellows 9 and detachable view finder 14means provided in the camera of detachably mounted on body 8 and adaptedto receive the light from the object by stationary reflecting mirrors12, 13 secured in the body 8. A ground glass plate 1 1 for focusing animage of the object by means of objective lens is secured in the body 8.

In accordance with the present invention a film supplying cassette 1housing therein a plurality of unexposed film sheets and a filmreceiving cassette 2 are detachably mounted on main body 1 as shown inFIG. 1 so as to supply and feed the film sheets one by one from cassette1 to the position in front of glass plate 11 for the exposure thereof bymeans of shutter release means and receive the exposed fiom sheets onebyone in cassette 2 by the actuation of the film feed means provided inbody 8 as described below.

In FIGS. 3 to 5, film supplying cassette 1 and film receiving cassette 2are shown as being substantially in the same configuration with'eachother except that film supplying cassette 1 is provided with leaf spring34 as shown in FIG. 10 while film receiving cassette 2 is provided withleaf spring 35 as shown in FIG. 10. Cassette 1, 2 is of a rectangularform with its one end closed by stationary end plate 3 while theopposite end is opened and covered by lid 4 detachably mounted on theopen end of cassette 1, 2. A plurality of unexposed film sheets areinserted into film supplying cassette 1 through the open end andthereafter the open end is closed by lid 4. An opening 5 is provided inone side surface of cassette 1, 2 adjacent to end plate 3 as shown forsupplying the unexposed film sheets one by one into body 8 therethroughfor the exposure thereof when cassette 1 is mounted on body 8. Movablelid 6 is slidably mounted on cassette 1, 2 so as to be allowed to movebetween a position closing opening 5 and a position at which opening 5is opened. Springs 6' are provided between inner end surface of lid 6and the abutment surface of cassette 1, 2 as shown in FIGS. 3 and 5 sothat lid 6 is normally urged to the position at which opening 5 isclosed. A stopper 7 is formed in the side surface of cassette 1, 2 asshown in FIGS. 3 and 4, the operation of which will be described later.

Body 8 is provided with guide recess for receiving film supplyingcassette 1 as shown in FIG. 10, recess 15 extending into body 8 fromabout the midpoint of the rear wall of body 8 downwardly. Recess 15 isprovided with opening 15' coinciding with opening 5 of cassette 1 whenthe same is fitted in recess 15 in position. Abutment piece 15a isprovided at one edge of opening 15 of recess 15 so that lid 6 abutsagainst piece 15a when cassette 1 is inserted into recess 15 therebymoving lid 6 against the action of springs 6 rearwardly to clear opening5 so as to communicate the interior of cassette 1 with the interior ofbody 8 through openings 5 and 15. Spring biased operating lever 17engages with stopper 7 of cassette 1 and prevents cassette 1 from beingwithdrawn from recess 15 unless lever 17 is manually actuated againstthe action of the spring of lever 17 to disengage lever 17 from stopper7.

The stacked unexposed film sheets are loaded in cassette 1 with theiremulsion bearing surfaces facing downwardly and biased by spring 34downwardly toward the side wall of cassette 1 in which opening 5 isprovided.

In like manner, recess 16 is provided in body 8 for receiving filmreceiving cassette 2 as shown in FIG. 10, recess 16 extending into body1 from the lower portion of the rear wall of body 1 substantiallyhorizontally. Opening 16' is formed in recess 16 in coincidence withopening 5 of cassette 2.

A first roll train 18, 19 consisting of odd number of rolls contactingwith each other so as to rotate together and each rotatably supported byswingable lever 20 is located adjacent to opening 15' near one endthereof as shown in FIGS. 6, 10. Swingable lever 20 is pivotally mountedin body 8 at about its midpoint and biased by spring 20' in theclockwise direction as seen in FIG. 10, so that roll 18 is biasedagainst one end of the inner edge portion of the lowermost film sheet incassette 1. As shown in FIG. 6, anotherroll train 18', 19 similar tofirst roll train 18, 19 is located adjacent to the opposite end ofopening 15 and each of the rolls in the train is connected to thecorresponding roll of roll train 18, 19 by the shaft, so that rolltrains 18, l9; 18, 19 are arranged in symmetry with respect to thelongitudinal center line of cassette 1 and moved together.

In like manner a second roll train 21, 22 similar to roll train 18, 19and supported by swingable lever 23 is located adjacent to opening 16near'one end thereof. Lever 23 is biased in the clockwise direction bymeans of spring 23 shown in FIG. 6 so that roll 21 is urged upwardly.Another roll train similar to roll train 21, 22 is located at theopposite end of opening 16 and each of the rolls in the train isconnected to the corresponding roll of roll train 21, 22 so that theyare arranged in symmetry with respect to the center line of the cassette2 and moved together. A major roll 25 is rotatably supported in body 8by shaft 27 secured to roll 25 as shown in FIG. 10. Shaft 27 rotatablysupports switching arms 26 at opposite ends of major roll 25 andswitching roll 24, 24 are rotatably mounted at the free end ofrespective switching arms 26. Idle rolls 24" are rotatably mounted onarms 26 and contact with major roll 25 and respective switching rolls24, 24 so that switching roll 24, are rotated in the same direction asthat of major roll 25 when the same is rotated.

Switching rolls 24, 24 are contacted with rolls 19, 19', respectively,when arms 26 are swung in the clockwise direction, while they arecontacted with roll 22 of roll train 21, 22 and the corresponding rollof the corresponding roll train, respectively, when arms 26 are swung inthe anticlockwise direction.

A set of feeding roll trains 31, 32, 33, each of which roll trainconsists of odd number of rolls, is located adjacent to the lower end ofglass plate 11 with roll 33 contacting with major roll 25 so that eachroll is rotated when major roll 25 is rotated. Rolls 31, 32 arepositioned so that a film sheet fed therebetween is located immediatelyin front of glass plate 11 so that the film sheet is fed in front ofglass plate 11. A set of guiding roll trains G consisting of rolls G, G,is located around major roll 25 with rolls G, located adjacent to roll22 of roll train 21, 22 and the corresponding roll of the correspondingroll train, while rolls G are located adjacent to rolls 31 of feedingroll trains 31, 32 33, so that the film sheet is guided around majorroll 25 from cassette 1 toward glass plate 11 and guided back towardcassette 2.

Now, the mechanism for driving major roll 25 will be described inconnection with FIG. 6.

Body 8 is provided outer and inner side walls definingcompartmentstherebetween, respectively. In the right hand compartment asseen in FIG. 6, upper shaft 36 and lower shaft 37 are journaled inparallel to each other and an exterior manually operable crank handle36a is fixed to the outer end of shaft 36. Shaft 36 loosely mountsthereon hub 38a of driving gear 38. A right-handed coil spring 39 isprovided around hub 38a with its one end secured to pin 39' secured to astationary portion of body 8 while the other end is secured to hub 3811.Another right-handed coil spring 40 is provided around shaft 36 at theside of gear 38 opposite to that at which spring 39 is provided. One endof spring 40 is secured to pin 40' secured to a stationary portion ofbody 8 while the other end is secured to shaft 36.

Gear 38 is provided with pin 38b which is engageable with the bent tipof pin 36b secured to shaft 36 so that gear 38 is rotated in theanticlockwise direction when handle 36a is manually rotated in theanticlockwise direction so as to energize spring 39, while, at the sametime spring 40 is energized.

Driven gear 41 is fixedly secured to shaft 37 and meshed with gear 38.Shaft 37 rotatably mounts thereon actuating gear 42. Left-handed coilspring 43 is provided around the hub of gear 42 with its one end beingsecured to pin 42a fixed to gear 42 while the other end is secured topin 41a fixed to gear 41, pin 41a being arranged so as to be engageablewith pin 42a of gear 42.

A driving pinion 56 is fixed to shaft 27 which is integral with majorroll 25 so that the same is driven in either of two directions dependingupon the direction of rotation of actuating gear 42.

Pin 42c fixedly secured to gear 42 is adapted to abut a stopper 52secured to body 8. Swingable lever 50 is pivoted at its intermediateportion to body 8 and biased by spring 51 in the anticlockwisedirection. An actuating member 48 is slidably mounted on the side wallof body 8 to move a limited amount by slot-pin engagement as shown, theouter end thereof protruding exterior of body 8 so that member 48 ismanually operatedby the outer end. Pin 50a secured to the upper end oflever 50 abuts against the inner end of member 48 so that member 48 isnormally urged outwardly by the action of spring 51 while the lower endof lever 50 abuts against pin 420 so that pin 42c is arrested betweenstopper 52 and the lower end of lever 50 so as to prevent the rotationof gear 42. When member 48 is manually moved inwardly, lever 50 isrotated in the clockwise direction against the action of spring 51 sothat the lower end of lever 50 is disengaged from pin 420 to permit gear42 to rotate in the clockwise direction.

A swingable lever 45 is pivoted at itsintermediate portion to body 8 andbiased by a spring in the clockwise direction so as to normally abutagainst stopper pin 46 secured to body 8 to limit the rotation of lever45. The lower end of lever 45 is in the path of movement of pin 41bsecured'to gear 41 when lever 45 abuts against stopper pin 46, so thatthe anticlockwise rotation of gear 41 is prevented when pin 41!; abutsagainst the lower end oflever 45.

Another actuating member 47 is slidably mounted on the wall of body 8 tomove a limited amount by slotpin engagement and the outer end thereofprotrudes exterior of body 8 so that member 47 is actuated manually bythe outer end thereof. The upper end of swingable lever 49 pivoted tobody 8 at its intermediate portion is pivoted to the inner end of member47 and the lower end of lever 49 is provided with pin 49a securedthereto. Pin 49a abuts against the upper end of lever 45 so that member47 is normally urged outwardly by the action of the spring biasing lever45 in the clockwise direction, while, when member 47 is manually urgedinwardly, lever 45 is rotated in the anticlockwise direction against theaction of the spring of lever 45 by the interposition of lever 49 havingpin 49a so that the lower end of lever 45 moves out of the path ofmovement of pin 41!; of gear 41 thereby permitting gear 41 to rotate inthe anticlockwise direction without lever 45.

A mask plate 55 having an elongated stem is pivotally mounted on body 8at the intermediate portion of the stem and biased by spring 55a in theanticlockwise direction so that mask plate 55 intercepts the opticalpath of view finder 14 to prevent the'stray light harming the properexposure of the film sheet from entering body 8 through view finder 14.

Lever 53 in the form of a bell-crank is pivoted at its bent portion tobody 8 and biased in the anticlockwise direction by spring 54. The bentportion of the upper end of lever 53 is located in the path of movementof the outer end of the stem of mask plate 55 while the lower end oflever 53 is located in the path of movement of pin 42d fixedly securedto gear 42 so that, in the position shown in FIG. 6 in which pin 420 isarrested between stopper 52 and the lower end of lever 50, lever 53 isurged in the clockwise direction by pin 42d against the action of spring54 so that the upper end of lever 53 urges the outer end of the stem ofmask plate 55 upwardly to move mask plate 55 out of the light path ofview finder 14 thereby permitting the image of the object formed inglass plate 11 to be viewed through view finder 14. When gear 42 isrotated in the clockwise direction, pin 42d is disengaged from the lowerend of lever 53 so that lever 53 is rotated in the anticlockwisedirection by the action of spring 54 so as to move mask plate 55 intothe light path of view finder 14 by the action of spring 55a tointercept the stray light entering body 8 therethrough.

A switching lever 44 is rotatably mounted on shaft 27. Shaft 28 of roll24 extends outwardly beyond switching arm 26 and passes through anopening formed in the free end of lever 44 so that switching arm 26 andswitching lever 44 is rotated together. As shown in FIGS. 6, 8, 9 and 11, one end of tension spring 30 is secured to the outer end of shaft 28while the other end is secured to a stationary point 29 in body 8located the hindrance given by I spring 30 to move rolls 24, 24

substantially opposite to the position of shaft 28 with respect to shaft27 so that, when switching lever 44 is rotated in the clockwisedirection, spring 30 urges switching lever 44 in the clockwise directiontogether with switching arm 26 so that rolls 24, 24 are urged to contactwith rolls 19, 19 of the set of first roll trains 18, 19; l8, 19, while,when switching lever 44 is rotated in the anticlockwise direction overthe dead point of spring 30, switching lever 44 is urged in theanticlockwise direction together with switching arm 26 by the action ofapart from rolls 19, 19 and contact with roll 22 and'the correspondingroll of the set of second roll train 21, 22 and the corresponding rolltrain.

As shown in FIGS. 6, 9 and 11, switching lever 44 is provided withprojection 440 which is so located in the path of movement of pin 42bfixedly secured to gear 42. The angular position of pin 42b is sodetermined that, when gear 42 rotates in the clockwise direction fromthe position shown in FIG. 6, pin 42b abuts against the opposite side ofprojection 44a at about a complete revolution of gear 42 so thatswitching lever 44 is rotated in the anticlockwise direction beyond thedead point of spring 30 thereby contacting rolls 24, 24' with roll 22 ofsecond roll train 21, 22 and the corresponding roll, respectively, whileswitching lever 44 is rotated in the clockwise direction when gear 42 isrotated in the anticlockwise direction to its initial position shown inFIG. 6 by the abutment of pin 42b against projection 44a so as to moverolls 24, 24 to contact with rolls 19, 19, respectively.

The operation of the above described film feed means is as follows.Starting with the position shown in FIG. 6 in which an exposed filmsheet has been fed in cassette 2 and no film sheet is fed to the frontsurface of glass plate for the exposure thereof, handle 36a is firstrotated manually in the anticlockwise direction so that spring 40 isenergized. Then gear 38 is driven in the same direction by theengagement of pin 38a with pin 36b so that spring 39 is also energizedwhile gear 41 meshing with gear 38 is driven in the clockwise directionto energize spring 43, because gear 42 is prevented its rotation by pin42c arrested between stopper 52 and the lower end of lever 50. As gear41 rotates about one revolution, pin 41b contacts lever 45 to move thesame in the anticlockwise direction and, when pin 41b moves beyond thelower end of lever 45, lever 45 returns to its initial position by theaction of the spring thereof so that gear 41 which is now urged in theclockwise direction by the energization of spring 43 is prevented fromrotating in the clockwise direction by the abutment of pin 41b againstthe lower end of lever 45. Now, the filin feed means is ready for theoperation.

In order to feed a film sheet for the exposure thereof, actuating member48 is manually moved inwardly to rotate lever 50 in the clockwisedirection so that the lower end of lever 50 is disengaged from pin 42cof gear 42 thereby permitting gear 42 to be rotated in the clockwisedirection by the energization of spring 43 until pin 42c abuts aginstthe opposite side of stopper 52, while spring 39 is held energized bythe arresting of gear 41 by pin 41b abutting against the lower end oflever 45. Thus, pinion 56 meshing with gear 42 is rotated in theanticlockwise direction together with major roll 25. Since rolls 24, 24remain in contact with rolls 19, 19 of the set of first roll trains,respectively, rolls 18, 18 is driven and move the lowermost film sheetin the stack in cassette 1 out of cassette 1. Thus, the film sheet isfed around major roll 25 in cooperation with guide roll train G towardfeeding roll trains 31, 32, 33 and nipped between rolls 31, 32 so as tobe fed in front of glass plate 11 for the exposure of the film sheet. Atabout the end of one revolution of gear 42, pin 42b abuts againstprojection 44a of switching lever 44 thereby switching the same todisengage rolls 24, 24 from rolls 19, 19 and contact them with roll 22and the corresponding roll, respectively, to be ready for feeding theexposed film sheet into cassette 2 by means of second roll train 21, 22and the corresponding roll train. When gear 42 is rotated substantiallyby one revolution and stopped by the abutment of pin 42c against stopper52, rotation of major roll 25 is stopped and, hence, feed rolls 31,

32, rolls 18, 18 are stopped so that the fed film sheet is held inposition in front of focusing glass plate 11 for the exposure thereof.

When gear 42 rotates in the clockwise direction, pin 42a is disengagedfrom lever 53 so as to cause the same to be swung in the anticlockwisedirection by the action of spring 54 so that mask plate 55 moves tointercept the light path of view finder 14. This prevents the straylight from entering body 8 through view finder 14 so that a properexposure of the film sheet is insured without hindrance of the straylight.

After the film sheet is exposed by releasing shutter release means notshown, the exposed film sheet is withdrawn from the position in front ofglass plate 11 and fed back into cassette 2 by manually moving actuatingmember 47 inwardly.

The inward movement of member 47 causes lever 45 to be rotated in theanticlockwise direction by the abutment of pin 49a of lever 49, so thatpin 41b of gear 41 is disengaged from lever 45 thereby causing gear 41to be rotated in the anticlockwise direction by the force of spring 39which has been kept energized. The anticlockwise rotation of gear 41causes gear 42 to be rotated in the same direction by the engagement ofpin 41d of gear 41 with pin 42a of gear 42. Thus, pinion 56 meshing withgear 42 is rotated in the clockwise direction together with major drum25, so that the exposed film sheet nipped by rolls 31, 32 is fed backalong guide roll trains G toward second roll train 21, 22 now engagingwith rolls 24, 24 thereby permitting the film sheet to be introduced incassette 2. At the end of about one rotation of gear 42, pin 42c againabuts against stopper 52 and arrested between the same and the lower endof lever 50 by the action of spring 51, while pin 42b abuts againstprojection 44a of lever 44 so that the same is extending in inclineddirection with the forward end of' moved inwardly once member 48 isactuated prior to the actuation of member 47. After member 47 isactuated, stopper member 58 is again rotated and held at the positionshown in FIG. 8 at which member 47 is prevented from being actuatedunless member 48 is actuated.

View finder 14 is shown as being an eye-level finder. However,chest-level finder may be mounted on the camera in place of theeye-level finder.

FIG. 14 shows another embodiment of the present invention on which asingle film cassette is detachably mounted for supplying the unexposedfilm sheets one by one and receiving the exposed film sheets.

As shown in FIG. 14, the camera comprises main body 119, bellows 120mounted on body 119 and taking lens 121 mounted on the forward end ofbellow 120. View finder 126 and reflecting mirrors 124, 125 are providedin body 119 in like manner as those shown in FIG. 1.

The film cassette is detachably mounted in the cassette mounting recess127 located in the rear wall of body 119 and member 127 directeddownwardly.

The film cassette shown in FIG. 14 comprises main frame 101 ofrelatively thin rectangular form having opened upper and lower openings.The upper opening is closed by upper lid 102 hinged to frame 101 andprovided with leaf springs 1020 again switched to cause rolls 24, 24 tocontact with rolls 19,

19 of the set of first roll trains 18, 19; 18, 19' to be ready forfeeding a new film sheet out of cassette 1. At the same time, pin 42dabuts against lever 53 to swing it in the clockwise direction so thatmask plate 55 is swung out of the light path of view finder 14 to permitthe image of the object tobe viewed therethrough.

Thus, the operation can be started by rotating handle 36a in theanticlockwise direction as already described. Handle 36a is returned toits initial position by energization of spring 40.

In accordance with a feature of the present invention, safety means isprovided to prevent erroneous operation by the operator of actuatingmember 47 prior to the actuation of actuating member 48 after springs39, 43 have been energized by the operation of handle 36a.

As shown in FIG. 8, Tshaped stopper member 58 is pivotally mounted atabout the center thereof on the side wall of body 8 between members 47,48. Tension spring 59 is secured at its one end to the outer end of thestern of member 58 while the other end is secured to a stationary pointof body 8 at a position opposite to the side the stem of member 58extends so that member 58 is urged in the clockwise direction by spring59 when the same is rotated in the same direction while member 58 isurged in the anticlockwise direction by spring 59 when it is rotated inthe anticlockwise direction over the dead point of spring 59.

Pin 60 is secured to actuating member 47 and pin 61 is secured tostationary member 48. The configuration of stopper member 58 is sodetermined that a wing portion of T- shaped member 58 abuts against pin61 when the same is rotated in the clockwise direction so that it isheld in the position rotated in the clockwise direction while the outerend of the stem of member 58 is located in the path of movement of pin60 so that pin 60 abuts against the outer end of the stem of member 58when member 47 is moved inwardly thereby preventing the inward movementthereof.

When member 48 is moved inwardly, pin 61 abuts against the wing portionof member 58 so that the same is rotated in the anticlockwise directionand held in its rotated position by the abutment of the other wingportion of member 58 against pin 60 even though member 48 is returned toits initial position as shown in FIG. 9. Thus, member 47 is allowed tobe at itsinner surface while the lower opening is closed by lower lid103 hinged to frame 101 and provided with leaf springs 103a at its innersurface as shown in FIGS. 16 and 17. An elongated opening 106 forpassing the film sheet therethrough is provided in one end wall of frame101 and a ledge 104 is formed in the inside surface of the end wall, theupper surface of ledge 104 being in flush with the lower inner surfaceof opening 106 as shown in FIG. 19. Another ledge 105 projects inwardlyfrom the inner surface of the opposite end wall of frame 101 as shown inFIGS. 17 and 19. Ledges 104 and 105 divide the interior of the cassetteinto two compartments A, B, A being for supplying new film sheets whileB is for receiving the exposed film sheets.

The end wall having opening 106 is provided with vertical slots 107 eachhaving enlarged bottom portion in cross-section adjacent to the oppositeends of the end wall as shown in FIG. 17, upper end of each of slots 107opening at the upper surface of the end wall and being provided withinternal thread while the lower end of each of slots 107 is closed.Cover plate 108 for closing opening 106 is provided at its opposite endswith mating portions 108a slidably engageable with slots 107, and matingportions 108a are engaged in slots 107. Compression springs 109 areinterposed between the lower closed ends of slots 107 and matingportions 108:: and the upper ends of slots 107 are closed by set screws110, respectively, so that opening 106 is normally closed by cover plate108 by the action of springs 109, while opening 106 is opened when coverplate 108 is urged downwardly against the action of springs 109.

Each of the film sheets is housed in a film holding frame 117 shown inFIG. 18. Frame 117 is provided at its three sides including twolongitudinal sides web portions bent back upon the base plate withclearance held therebetween for holding three sides of the film sheet inthe clearance. Projection 117a is provided at the intermediate portionof each of the longitudinal sides of frame 117, the actuation of whichwill be described later. A pair of cut-out portions 1 18 is formed atthe side of the base plate of frame 117 where no web portion is providednear the opposite ends of side, the operation of which will be describedlater.

An elongated recess 111 is provided in the inner surface of each of thelongitudinal side walls of frame 101 extending lengthwise of the walls.

Slidable piece 112 is slidably received in each of recesses 111 and pin113 secured to piece 112 protrudes outwardly beyond the side wallthrough elongated hole formed in the side wall, while set screw 114having a head is screwed to piece 112 from the exterior of the side wallthrough elongated stepped hole 116 so that the head of screw 114 willnot project outwardly of the side wall, thereby guiding piece 112lengthwise in recess 1 1 1.

Projections 112a and 112b are formed in the inside surface of each ofpieces 112 at the relative positions as shown in FIGS. 17, 21 and 22.

A plurality of frames 117 housing therein an unexposed film sheet aresupported by ledges 104 and 105 and stacked in compartment A of thecassette with the emulsion surface of the film sheet facing downwardly.Leaf springs 102a urge the stacked film holding frames 117 downwardly sothat the lowermost frame 117 is aligned with opening 106.

I The cassette as described above is loaded in cassette mounting recess127 as shown in FIGS. and 19 and locked in position by locking members134.

The inside end wall of recess 127 is formed with an opening 132 andprojections 133 in the inner surface of the end wall. The positions ofprojections 133 and opening 132 are so determined that, when thecassette is loaded in recess 127 in position, projections 133 abutagainst portions 108a so that cover plate 108 is moved out of opening106 against the action of springs 109 so as to communicate opening 106with opening 132 in alignment with each other.

An exposure frame is provided in front of a ground glass plate 122 forfocusing an image of the object formed by taking lens'121. Glass plate122 is secured to a pair of mounting member 123 each having I .-shapedprojection 123a extending rearwardly from each member 123 as shown inFIG. 19. Each of L-shaped projections 123a is slidably mounted in body119 by pin-slot engagement for the limited movement so that glass plate122 can be shifted rearwardly for facilitating a film sheet to belocatedin front thereof for sharp focusing of the image thereon after the imageis focused on glass plate 122. To this end, one end of spring 130 issecured to the tip of the bent portion of each of projections 1230 whilethe other end is secured to a stationary point in body 119 to urgemembers 123 together with glass plate 122 forwardly. A shaft 128 isrotatably joumaled in body 119 at the inside of the bent portion ofL-shaped projections 123a and a pair of cams 129 fixedly secured toshaft 128 engage with the respective inside surfaces of the bentportions of projections 123a, respectively, so that, when cams 129rotate, projections 123a are moved rearwardly by cams 129 against theaction of springs 130 to retract glass plate 122 for clearing the spaceto introduce the film sheet therein for the proper focusing of the imagethereon. A spring 131 is provided around shaft 128 so that shaft 128 isnormally urged in the clockwise direction.

Now the film feed means incorporated in the camera shown in FIG. 14 willbe described with reference to FIGS. 19 to 22. The film feed means ishoused in a compartment defined by outer and inner side walls at theright hand side of body 119 as seen in FIG. 15.

A shaft 136 fixedly mounting thereon a major roll 135 is rotatablyjoumaled in body 119 beneath glass plate 122 so that the rightmostportion of the periphery of major roll 135 is positioned substantiallybelow the lower end of glass plate 122. A pair of feeding roll trains37, 38, 39 each consisting of odd number of rolls are arranged adjacentto opening 132 with the nip of rolls 137, 138 in alignment of opening132 while rolls 139 contact with major roll 135 so as to be driventhereby. The lateral spacing of the pair of roll trains 137, 138, 139 ismade to correspond to the spacing of cut-out portions 1 l8, 1 18 in filmholding frame 117 so that the edge of the film sheet in frame 117 can beengaged between the nip of rolls 137, 138 when frame 117 is movedforwardly through openings 106 and 132 as described later.

Another pair of feeding roll trains 140, 141, 142 are provided adjacentto the lower end of glass plate 122 with the nip of rolls 141, 142 inalignment with the extention of the front surface of glass plate 122while rolls 140 contact with major roll 135 to be driven thereby. Thelateral spacing of the pair of roll trains 40, 41, 42 is made tocorrespond to that of roll trains 137, 138, 139.

A pair of guide roll trains R,R, are arranged around major roll from thepositions adjacent to rolls 137 to the posi tions adjacent to rolls 142,respectively, so that they guide the film sheet around major roll 135from opening 132 to the lower end of glass plate 122 and vice versa.

Manually operable handle 128a is secured to the outer end of shaft 128exterior of body 119 as shown in FIG. 15, and a pair of actuating discs148 are fixedly secured to shaft 128 at either side of body 119. Aprojection 148a provided in one of discs 148 located at the right-handside of body 119 as shown in FIG. 20 normally abuts against the lowerside of stopper 152 by the action of spring 131 biasing shaft 128 in theclockwise direction so as to limit the clockwise rotation of shaft 128.At this position of shaft 128, the recessed portion of each of cams 129contacts with the camming surface of each projection 123a so as to holdglass plate 122 in the forwardly shifted positionfor the focusing of theimage thereon by the action of spring 130.

Shaft 128 fixedly mounts thereon a gear 143 which meshes with an idlegear 144 rotatably mounted in body 119. Gear 144 meshes also with smallgear 145 rotatably mounted in body 119 and integral with large gear 146which meshes with gear 147 fixedly secured to shaft 136 fixedly mountingmajor roll 135. I 1

An actuating member 151 is slidably mounted on the side wall of body 119by pin-slot engagement for the limited movement thereof. The inner endof member 151 abuts against a pin secured to the upper end of swingablelever 149 pivoted at its intermediate portion to body 119 and biased inthe anticlockwise direction by a spring. The lower end of lever 149 willengage with projection 148a of one of discs 148 when shaft 128 isrotated by handle 128a in the anticlockwise direction so that projection148a is arrested by the lower end of lever 149 as shown in FIG. 20 toprevent the clockwise rotation of discs 148, while spring 131 is keptenergized.

A pair of swingable lever 150 are pivoted to body 119 at theirintermediate portions at the respective sides of body 119 and biased inthe anticlockwise direction by a spring.

A pin 148b is secured to each of discs 148 and pin 148b abuts againstthe raised portion intermediate of each of levers 150 when discs 148 arerotated in the anticlockwise direction to be arrested with projection148a by the lower end of lever 149, so that levers 50 are arrested at aposition slightly rotated in the clockwise direction against the actionof the spring urging levers 50 in the anticlockwise direction.

Each of levers 50 is provided with a bifurcated portion at the lower endthereof which is adapted to engage with pin 113 of the cassette when thesame is loaded in position in recess 127 so that pieces 112 are shiftedforwardly by levers 150 when pins 148b disengage from levers 150 by theclockwise rotation of discs 148 as described later.

Starting the operation under the condition under which no film sheet islocated in front of glass plate 122, handle 1281 is first rotated in theanticlockwise direction substantially by one revolution until projection148a is arrested by the lower end of lever 149 while gear train 143-147is driven and spring 131 is energized by the rotation of shaft 128.

The rotation of shaft 128 in the anticlockwise direction once causes theraised portion of each cam 129 to contact with the camming surface ofeach projection 123a to move glass plate 122 rearwardly, but, when shaft128 is rotated until projection 148a is arrested by the lower end oflever 149, the recessed portion of cams 129 contact with faces so thatglass plate 122 is held in the proper position for focusing the imagethereon.

After proper focusing of the image is effected by means of view finder126, actuating member 151 is manually moved inwardly. Then, lever 149 isrotated in the clockwise direction so that the lower end thereof isdisengaged from projection 148a thereby causing discs 148 to rotate inthe clockwise direction by the force of spring 131 together with cams129 and gear 143.

the camming sur- The rotation of gear 143 causes major roll 135 torotate in the anticlockwise direction through gear train 143 147 so thatrolls 137, 138 as well as 141, 142 are rotated in the directions forfeeding the film sheet nipped therebetween toward glass plate 122. Atthe same time, pin 1481) of each disc 143 is disengaged from therespective lever 150 thereby causing levers 150 to swing in theanticlockwise direction by the action of springs so that pins 113engaging with the bifurcated portions of the respective levers 150 areurged forwardly to move pieces 112 forwardly.

By the forward movement of pieces 112, the lowermost film holding frame117 in the stack in compartment A of the cassette is urged the right asseen in FIGS. 19 and 21 by the engagement of projections 117a of frame117 with projections 112b of pieces 112 so that the forward end of frame117 protrudes through openings 106 and 132 thereby permitting theforward end of the film sheet in frame 117 to be nipped between rolls137, 138. Thus, the film sheet is fed along guide roll trains R, Raround major roll 135 toward the nip of rolls 141, 142 so as to be fedin front of glass plate 122. During the rotation of shaft 128, theraised portions of cams 129 contact with the camming surfaces ofprojections 123a to clear the space for introducing the film sheet.Therefore, the film sheet is safely fed in front of glass plate 122.

After the film sheet has been fed into proper position in front of glassplate 122, projection 148a abuts against stopper 152 to stop therotation of major roll 135 and, at the same time, shutter release meanscoupled with the film feed means is actuated for the exposure of thefilm sheet. Shutter release means may be manually operated after majorroll 135 is stopped.

When the lowermost frame 117 is moved forwardly, the tail end thereofmoves apart from ledge 105 and is urged downwardly by spring 102a asshown in FIG. 22, so that frame 117. is received in compartment B whenthe same is moved back into the cassette as described below.

After the exposure of the film sheet has been effected, handle 128a isrotated in the anticlockwise direction for energizing spring 131 anddriving gear train 143 147 until projection 148a is arrested by thelower end of lever 149. During the rotation of handle 128a, major roll135 is driven in the clockwise direction so that the exposed film sheetis fed back into the lowermost frame 117 which now projects beyondopenings 106 and 132 by rolls 41, 42 and rolls 137, 138.

About the end of rotation of discs 148 in the anticlockwise direction,pins 148b abut against lever 150 so that levers 150 moves pieces 112backwardly by the engagement of projections 1120 with projections 117aof frame 117 so that the projected frame 117 is moved back intocompartment B of the cassette as shown in FIG. 22. Thus, the film feedmeans is in the condition ready for the next operation for the exposureby the action of actuating member 151.

We claim:

1. A photographic camera apparatus comprising:

A. a camera having a position for photographic exposure of a film sheet,

B. film cassette means attachable to and detachable from said camera forholding a plurality of sheets of unexposed film in a film supplyingcassette position and adapted to hold a plurality of sheets of exposedfilm in a film receiving cassette position, and

C. manually operable roller means rotatable in a first direction fordriving, guiding and feeding a sheet of film from the film supplyingcassette position along a defined path in one direction into saidposition for photographic exposure and rotatable in a direction oppositesaid first direction to drive, guide, and feed said sheet of film backover part of said defined path in the direction opposite said onedirection into said film receiving cassette position.

2. A camera apparatus according to claim 1 wherein the film supplyingcassette position and the film receiving cassette position of said filmcassette means respectively comprise first and second separate filmcassettes each detachably mounted on said camera.

3. A camera apparatus according to claim 1 in which the film supplyingcassette position and the film receiving cassette position of said filmcassette means are both contained within a single integral cassette asseparate compartments thereof.

4. Photographic camera having a detachable film cassette containingtherein a plurality of unexposed film sheets to be exposed in saidcamera upon actuation of shutter release means of said camera, whereinthe improvement comprises film feed means having a manually operablehandle for energizing said film feed means each time said handle isactuated so as to permit one of said film sheets within said cassette tobe fed to a position within said'camera for the exposure thereof by theactuation of an actuating member of said film feed means, said filmsheet, after having been exposed by the actuation of said shutterrelease means, being adapted to be withdrawn from said position for theexposure of the film sheet so as to be ready for the feeding of thesucceeding one of said film sheets in said cassette to said position forthe exposure of the film sheet,

and further comprising a separate film cassette detachably mounted onsaid camera for receiving the exposed film sheet each time anotheractuating member of said film feed means is actuated prior to theactuation of said handle, and

wherein said film feed means comprises a major feed roll driven ineither of opposite two direction for feeding the film sheets toward saidposition for the exposure and toward said separate film cassette by saidfilm feed means energized by said handle, a first set of roll trainslocated adjacent to the first mentioned caassette for feeding therespective film sheets out of said film cassette, a second set of rolltrains located adjacent to said separate cassette for feeding therespective exposed film sheets into said separate film cassette, a setof guiding roll trains arranged around said major roll for guiding therespective film sheets therealong in cooperation with said major rollfrom said cassette to said position for the exposure and from saidposition for the exposure to said separate cassette, a set of feedingroll trains located adjacent to said position for the exposure andoperably engaged with said major roll so as to feed the respective filmsheets into or out of said position for the exposure of the film sheetdepending upon the direction of rotation of said major roll, and a setof switching roll trains operably coupled with said major roll, said setof switching roll trains being moved to a first position to contact withsaid set of first roll trains when said first mentioned actuating memberis actuated to drive said major roll in the direction for feeding thefilm sheet to said position for the exposure, so that said set of firstroll trains drives the respective film sheets out of said film cassetteso as to be fed into said position for the exposure, while said set ofswitching roll trains is switched to a second position to contact withsaid set of second roll trains when said another actuating member isactuated so as to drive said major roll in the direction for feeding thefilm sheet out of said position for the exposure so that the exposedfilm sheet is fed into said another film cassette.

5. Photographic camera having a detachable film cassette containingtherein a plurality of unexposed film sheets to be exposed in saidcamera upon actuation of shutter release means of said camera, whereinthe improvement comprises film feed means having a manually operablehandle for energizing said film feed means each time said handle isactuated so as to permit one of said film sheets within said cassette tobe fed to a position within said camera for the exposure thereof by theactuation of an actuating member of said film feed means, said filmsheet, after having been exposed by the actuation of said shutterrelease means, being adapted to be withdrawn from said position for theexposure of the film sheet so as to be ready for the feeding of thesucceeding one of said film sheets in said cassette to said position forthe exposure of the film sheet,

wherein said film cassette comprises two compartments in one of whichsaid plurality of unexposed film sheets are housed while the respectiveexposed film sheets are received in the other of said two compartmentseach time said handle is actuated, and

wherein each of said film sheets is housed in a film holding frame, andsaid film feed means comprises a major roll driven in the direction forfeeding the respective film sheets toward said position for the exposureby said film feed means energized by said handle upon the actuation ofsaid actuating member and driven in the direction for feeding therespective film sheets toward said film cassette by the actuation ofsaid handle for energizing said film-feed means, a first set of feedroll trains operably coupled with said major roll for feeding therespective film sheet out of said film holding frame containing the samewhen said actuating means is actuated to drive said major roll whilesaid first set of feed roll trains is driven to feed the respectiveexposed film sheets into said film holding frame from which said filmsheet has been withdrawn for the exposure thereof when said handle isactuated to drive said major roll in the direction for feeding the filmsheet toward said film cassette, a second set of feed roll trainsoperably coupled with said major roll for feeding the respective filmsheets into and out of said position for the exposure depending upon thedirection of rotation of said major roll, a set of guiding roll trainsarranged around said major roll for guiding the respective film sheetsin cooperation with said major roll toward said position for theexposure and toward said film cassette, and a set of operating leversengageable with the respective film holding frame and actuated by theactuation of said actuating member for shifting and returning therespective film holding frame to and from a position at which the filmsheet therein is allowed to be withdrawn and inserted therein by saidset of first feed roll trains while said film holding frame is movedfrom said one compartment to said other compartment.

6. Photographic camera according to claim 4, wherein means is providedfor preventing the actuation of said another actuating member prior tothe actuation of said first mentioned actuating member after said filmfeed means is energized by the actuation of said handle, switched so asto allow said another actuating member to be actuated each time saidfirst mentioned actuating member has been actuated after theenergization of said film feed means.

said means being

1. A photographic camera apparatus comprising: A. a camera having aposition for photographic exposure of a film sheet, B. film cassettemeans attachable to and detachable from said camera for holding aplurality of sheets of unexposed film in a film supplying cassetteposition and adapted to hold a plurality of sheets of exposed film in afilm receiving cassette position, and C. manually operable roller meansrotatable in a first direction for driving, guiding and feeding a sheetof film from the film supplying cassette position along a defined pathin one direction into said position for photographic exposure androtatable in a direction opposite said first direction to drive, guide,and feed said sheet of film back over part of said defined path in thedirection opposite said one direction into said film receiving cassetteposition.
 2. A camera apparatus according to claim 1 wherein the filmsupplying cassette position and the film receiving cassette position ofsaid film cassette means respectively comprise first and second separatefilm cassettes each detachably mounted on said camera.
 3. A cameraapparatus according to claim 1 in which the film supplying cassetteposition and the film receiving cassette position of said film cassettemeans are both contained within a single integral cassette as separatecompartments thereof.
 4. Photographic camera having a detachable filmcassette containing therein a plurality of unexposed film sheets to beexposed in said camera upon actuation of shutter release means of saidcamera, wherein the improvement comprises film feed means having amanually operable handle for energizing said film feed means each timesaid handle is actuated so as to permit one of said film sheets withinsaid cassette to be fed to a position within said camera for theexposure thereof by the actuation of an actuating member of said filmfeed means, said film sheet, after having been exposed by the actuationof said shutter release means, being adapted to be withdrawn from saidposition for the exposure of the film sheet so as to be ready for thefeeding of the succeeding one of said film sheets in said cassette tosaid position for the exposure of the film sheet, and further comprisinga separate film cassette detachably mounted on said camera for receivingthe exposed film sheet each time another actuating member of said filmfeed means is actuated prior to the actuation of said handle, andwherein said film feed means comprises a major feed roll driven ineither of opposite two direction for feeding the film sheets toward saidposition for the exposure and toward said separate film cassette by saidfilm feed means energized by said handle, a first set of roll trainslocated adjacent to the first mentioned caassette for feeding therespective film sheets out of said film cassette, a second set of rolltrains located adjacent to said separate cassette for feeding therespective exposed film sheets into said separate film cassette, a setof guiding roll trains arranged around said major roll for guiding therespective film sheets therealong in cooperation with said major rollfrom said cassette to said position for the exposure and from saidposition for the exposure to said separate cassette, a set of feedingroll trains located adjacent to said position for the exposure andoperably engaged with said major roll so as to feed the respective filmsheets into or out of said position for the exposure of the film sheetdepending upon the direction of rotation of said major roll, and a setof switching roll trains operably coupled with said major roll, said setof switching roll trains being moved to a first position to contact withsaid set of first roll trains when said first mentioned actuating memberis actuated to drive said major roll in the direction for feeding thefilm sheet to said position for the exposure, so that said set of firstroll trains drives the respective film sheets out of said film cassetteso as to be fed into said position for the exposure, while said set ofswitching roll trains is switched to a second position to contact withsaid set of second roll trains when said another actuating member isactuated so as to drive said major roll in the direction for feeding thefilm sheet out of said position for the exposure so that the exposedfilm sheet is fed into said another film cassette.
 5. Photographiccamera having a detachable film cassette containing therein a pluralityof unexposed film sheets to be exposed in said camera upon actuation ofshutter release means of said camera, wherein the improvement comprisesfilm feed means having a manually operable handle for energizing saidfilm feed means each time said handle is actuated so as to permit one ofsaid film sheets within said cassette to be fed to a position withinsaid camera for the exposure thereof by the actuation of an actuatingmember of said film feed means, said film sheet, after having beenexposed by the actuation of said shutter release means, being adapted tobe withdrawn from said position for the exposure of the film sheet so asto be ready for the feeding of the succeeding one of said film sheets insaid cassette to said position for the exposure of the film sheet,wherein said film cassette comprises two compartments in one of whichsaid plurality of unexposed film sheets are housed while the respectiveexposed Film sheets are received in the other of said two compartmentseach time said handle is actuated, and wherein each of said film sheetsis housed in a film holding frame, and said film feed means comprises amajor roll driven in the direction for feeding the respective filmsheets toward said position for the exposure by said film feed meansenergized by said handle upon the actuation of said actuating member anddriven in the direction for feeding the respective film sheets towardsaid film cassette by the actuation of said handle for energizing saidfilm feed means, a first set of feed roll trains operably coupled withsaid major roll for feeding the respective film sheet out of said filmholding frame containing the same when said actuating means is actuatedto drive said major roll while said first set of feed roll trains isdriven to feed the respective exposed film sheets into said film holdingframe from which said film sheet has been withdrawn for the exposurethereof when said handle is actuated to drive said major roll in thedirection for feeding the film sheet toward said film cassette, a secondset of feed roll trains operably coupled with said major roll forfeeding the respective film sheets into and out of said position for theexposure depending upon the direction of rotation of said major roll, aset of guiding roll trains arranged around said major roll for guidingthe respective film sheets in cooperation with said major roll towardsaid position for the exposure and toward said film cassette, and a setof operating levers engageable with the respective film holding frameand actuated by the actuation of said actuating member for shifting andreturning the respective film holding frame to and from a position atwhich the film sheet therein is allowed to be withdrawn and insertedtherein by said set of first feed roll trains while said film holdingframe is moved from said one compartment to said other compartment. 6.Photographic camera according to claim 4, wherein means is provided forpreventing the actuation of said another actuating member prior to theactuation of said first mentioned actuating member after said film feedmeans is energized by the actuation of said handle, said means beingswitched so as to allow said another actuating member to be actuatedeach time said first mentioned actuating member has been actuated afterthe energization of said film feed means.